An attachment module for a safety cone permitting a variety of safety enhancing devices to be easily attached to the cone. The attachment module comprising a top ring and a bottom ring joined together to form an assembly. The top ring and bottom ring sized to conform to a predefined safety cone angle or range of angles, the assembly having an attachment arm for attaching a safety-enhancing device. Examples of safety enhancing devices include, but are not limited to a flag, a sign, a safety tape holder, a light, or other safety-enhancing device. The assembly may be placed over a safety cone and is held secure by gravity and the wedge of the cone angle. Safety enhancing devices may then be attached to the module and thus to the cone to improve the effectiveness of the cone.